Pneumocystis carinii pneumonia in acute lymphatic leukaemia.
D002675:Child, Preschool; D006801:Humans; D007945:Leukemia, Lymphoid / Q000097:blood / Q000150:complications* / Q000188:drug therapy; D008168:Lung / Q000382:microbiology; D008297:Male; D011020:Pneumonia, Pneumocystis / Q000097:blood / Q000209:etiology*